TL shouldn't put the limit on the bombs that we save, my second account reached the limit which was 25 bombs and my evolution was ready for another 9 bombs but I completely forgot that TL haven't updated for Rune, so I clicked on it an hour before the update and it's gone with the wind.... I saved it so I could get 25 plus 9 (36hrs evolution). Oh well, so far I got 43 runes from 25 bombs.